Projecting apparatus.



E. KRIBGR Sz C. F. DEWEY.

PBOJEOTING APPARATUS.

APPLIOATION FILED APR. 2a, 1912.

Patented 0G13. 14, 1913.

2 sums-SHEET 1.

H. KREGBR & C. P. DEWEY.

PRoJBoTmG APPARATUS.

l v APPLICATION FILED APB. 23, 1912 lb, Patented 001;.14, 1913 24 SHEETB-SHEET 2.

.entran @FFIQFQ HUGO KRIEGER AND CHARLES FRANKLIN DEWEY, 0F NEIN YGRK, N. Y.; SAID DEWEY ASSIGNOR 'IO S .AID KRIEGER.

FROJECTING' APPARATUS.

Specification or" Letters Patent.

Application led Apri123, 1912. Serial No. 692,594.

To all 107mm, t may concern Be it known that we, Huso linmean, a subject of the German Emperor', and CHARLES F. DEWEY, acitizen of the United States, both residents of the city of New York, borough of the Bro x, in the county and State of New York, have invented a new and Improved Projecting Apparatus. of which the. following is a full, clear, and exact description.

The invention relates to dissolving view apparatus, such as shown and described in the Letters Patent of the United States, No. 1,001,534, granted to Hugo Krieger, `on August 2Q, 1911.

The object of the present invention is toprovide a new and improved projecting apparatus arranged for use as a dissolving 55.arranged transverse guideways B engaged view apparatus for projecting pictures, ad-4 vertisements and the like singly or for use in connection with a moving picture machine to permit the user'to display the pictures on. the screen while the film in the moving picture machine is changed.

For the purpose mentioned `use is made of-a lamp casing provided at one side with a housing, condensers of which one is mounted on the vlamp casing and the other on the said housing, the condensers having their axes arranged parallel one to the other, a source of light in the lamp casing, a ref fleeting surface in the said-housing, and a condenser lens intermediate the said casing and the said housing. i

A. practical embodiment of the invention is represented in the accompanying drawings forming a part of this specificatiomin which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a sectional plan view of the projecting apparatus with the lamp casing, the housing and condenscrs in position for projecting dissolving views on a distant screen; Fig. 2 is a like view of the same with the lamp casing, housing and condensers in position for projecting thepictures of a moving picture machine Onto a distant screen; Fig. 3 is an enlarged sectional side elevation of the lamp casing on the lineS-S of'Fig. Il; Fig. 4L is a sectional plan view of the same on the line 1 4 of Fig. and Fig. 5 is a transverse section of the same on the line of Fig. de.

On a table or other suitable support A are by bearings C attached to the under side of a lamp casing D provided at the inside with a source of light E, preferably in the form of an electric arc lamp, as indicated. in the drawings. In front of the source of light E is arranged a condenser F, preferably having two oppositely-disposed plano-convex lenses, as shown in Figs. 1 and 2, and on one side of the casing D is'arranged a housing Cr forming part of the casing D vand containing a mirror or other reflecting surface H. In the wall between the casing D and the housing G is located a single condenser lens I intermediate the source of light E and the i reflecting surface'H, and on the front of the housing G is arranged a single lens condenser J having its axis parallel with the condenser F. In front of the condensers F and J are arranged transverse guideways K, K for receiving a slide carrier L adapted to contain the pictures to be displayed on a distant screen, and on the front of the transverse guideways K, K are arranged hoods N, N each in the form of the frustum of a cone, the axis of which coincides with the axis of the 4corresponding con- `Vdenser F or J. The reflecting surface Il is mOunted on a platform' H having a vertical shaftH2 provided in' the bottom of the heus ing G, and on the lower end of the said shaft H2 is' secured a handle H3 to enable the operator to turn the platfornaH and. with it the reflecting surface II to more the latter into proper position relative to the condenser lens I and condenser J. .lnstead of the reflecting surface H a prism, such as described in the United States patent abore referred to', may be used, but. in this case the lens I may be omitted The gnideways K, K and the hoods N, N .ire supported by suitable brackets from the cara ing D and the housing Gr so as to move t" itu the said casing and housing on shiftingthe same transversely on the guideways B.

On the support A is arranged a moving picture machine G and adjacent to the moving picture machine O are arranged projecting lenses Il, P, of the usual construction,

P are so arranged one relative to the otherl ing the time the iilms are changed in the moving picture machine O. l/Vhen the cas ing D and the housing G are shifted transversely'on the guidevvays B to the position lshown in Fig. l, then the axes of the condensers F and J coincide With the axes of thc/projecting l-enses F and P to permit of using the apparatus for displaying dissolving views on a distant screen. l

When the apparatus is used for displaying the pictures of the moving picture inachine O on the Adistant screen then the condenser lens' I is covered up by a shutter Q (see Figs. 2 and 3) to utilize the rays of light emanating from the Source of light E to the fullest advantage by Way of the condenser F. The shutter Q is pivoted at Q on the side Wall of the casing D and on the outer end of the pivot Q is secured a handle Q2A under the control of' the operator for swinging the shutter Q into an open position as shown in Figs. l and 8, or into a closed position over the lens l' as illustrated in Fig. 2. A second shutter R is also arn ranged within the casing D and is adapted to open and close the condenser F to the source of light E, and this shutter R is pivoted on a pivot R journaled in the front of the casing D, and on the outer end of the pivot R is secured a handle R2 under the control oi" the operator for swinging the.

shutter R to one side into an open position to uncover the condenser F, or into a, closed position, as shown in Fig. 3, to prevent the light from passing to the condenser F,'that is, during the time the apparatus is used for displaying pictures on a distant screen by way ofthe condenser J -and the projecting lens P and While the films are changed in lthe moving picture machine 0, A spring R3 is placed between the front `ot the casing and the handle R2 to hold the shutterR in .the adjusted position, and a similar spring Q3 is arranged 'between the rear of the casing and the handle Q2 to hold the shutter Q 1n adjusted position.

The source of light E is arranged Within the casing D in such a manner that it' lies' within the axis of the condenser F as well as in the axis of the condenser lens l to supply both condensers F and il with the necessry light. The source of light E when inthe form of an arc light, as shown in the draw'- Lorenzo facing the condenser F (see Fig. 2), but

when both condensers F and J are used for projecting dissolving views onto a distant screen then the arc lamp is turned into a dividing position (see Fig.l l) so that the crater stands at an angle of 45 to the axes of the condcnsers F and l to supply both condense-rs with an approximately equal amount of light to insure the proper pro]ec tion of Jthe dissolving views through both congensers F and J and the projecting lenses R,

For the purpose mentionedv the carbon electrodes are held in the usual inclined position and are adjustably mounted on a carrier E provided with the usual shaft E2, pinion and racks for moving the electrodes toward or from each other. The carrier E is mounted to slide up and down on a post S by the use of a sha t E3, pinion and rack formed on the rear face of the post S, and.

the post S is mountLed near the free end of a horizontally-dispos' d swing arm S mounted to swing on a vertical pivot S2 held 0n a slide T mounted to slide longitudinally on a trame U mounted to slide transversely on the bottom of the. lamp casing l). The ree end of the swing arm S is guided in a. guideway S3 attached to the to of the slide T. 0n the trame U is secure a nutV in which screws a .screw rod V mounted to turn in a bearing V2 attached to the slide 'll sothat when the screws7 rod V is turned the slide 'l and with it the are lamp E is caused to' tra-vel to the right or to the left `according to the direction in which the screw lrod i74 is turned at the time. A similar screw rod W arranged in a transverse direction screws in a nut W held on the front of the lamp casing l), and the said screw rod W is mounted to turn in shearing W2 vheld on the frame ll so that when the screw rod W is turned the frame U and with it the slide T and the electric lamp E mounted thereon are shifted transversely either toward the hack or toward the front according to the turned.

The vertical pivot S2 has its axis passing through the center of the spark between the electrodes of the arc lamp, and by the arrangement described the arc lamp can be vdirection in Which the screw' rod W is readily adjusted so that its center lies in the 

